Chapter 16 of 19
Revision Notes
Logarithms — Revision Notes
OJEE MBA · Quantitative Aptitude
Free Logarithms revision notes for OJEE MBA Quantitative Aptitude 2026 — key concepts, formulas, and definitions for quick revision.
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Key concepts, formulas, and definitions from Logarithms for OJEE MBA Quantitative Aptitude preparation.
Key Topics to Revise
1
Definition and Basic Concepts
- If a^x = m, then x = log_a(m), where 'a' is the base, 'm' is the argument, and 'x' is the logarithm
- Logarithm is only defined for positive real numbers as arguments
- Base 'a' must be positive and not equal to 1
2
Laws of Logarithms
- Product Law: log_a(mn) = log_a(m) + log_a(n)
- Quotient Law: log_a(m/n) = log_a(m) - log_a(n)
- Power Law: log_a(m^n) = n·log_a(m)
3
Base Change Rule
- Allows conversion between different logarithmic bases
- Essential for solving problems with mixed bases
- Formula: log_a(b) = log_c(b)/log_c(a)
4
Characteristic and Mantissa
- Any logarithm consists of integer part (characteristic) and decimal part (mantissa)
- Characteristic can be positive, negative, or zero
- Mantissa is always written as positive
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Key Concepts
If a^x = mTwo essential propertiesThree fundamental lawsLogarithms with base 10 are calledEvery logarithm consists of two parts
Frequently Asked Questions
What topics are covered in Logarithms for OJEE MBA?
Logarithms is an important chapter in OJEE MBA Quantitative Aptitude. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Definition and Basic Concepts, Laws of Logarithms, Base Change Rule, Characteristic and Mantissa.
How important is Logarithms for OJEE MBA?
Logarithms is a frequently tested chapter in OJEE MBA Quantitative Aptitude. Questions from this chapter appear regularly in previous year papers. There are 58 practice questions available for this chapter.
How to prepare Logarithms for OJEE MBA?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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